function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
import React from 'react';
import { createPortal } from 'react-dom';
function isPromise(obj) {
  return !!obj && (_typeof(obj) === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
}
export var Portal = /*#__PURE__*/function (_React$Component) {
  _inherits(Portal, _React$Component);
  var _super = _createSuper(Portal);
  function Portal() {
    var _this;
    _classCallCheck(this, Portal);
    _this = _super.apply(this, arguments);
    _this.unmount = false;
    _this.mounted = false;
    _this.seqId = 1;
    _this.state = {
      container: null
    };
    return _this;
  }
  _createClass(Portal, [{
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      var _this2 = this;
      this.seqId++;
      if (isPromise(this.props.container)) {
        var currentSeqId = this.seqId;
        this.props.container.then(function (newContainer) {
          if (_this2.unmount || _this2.state.container === newContainer || _this2.seqId !== currentSeqId) {
            return;
          }
          if (!_this2.mounted && newContainer && _this2.props.onChildrenMount) {
            _this2.mounted = true;
            _this2.props.onChildrenMount();
          }
          _this2.setState({
            container: newContainer
          });
        });
      } else if (this.props.container) {
        if (!this.mounted && this.props.onChildrenMount) {
          this.mounted = true;
          this.props.onChildrenMount();
        }
      }
    }
  }, {
    key: "componentDidMount",
    value: function componentDidMount() {
      if (this.props.container && !isPromise(this.props.container) && this.props.onChildrenMount) {
        this.mounted = true;
        this.props.onChildrenMount();
      }
      this.componentDidUpdate();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.unmount = true;
    }
  }, {
    key: "render",
    value: function render() {
      var container = this.state.container;
      if (!container) return null;
      return /*#__PURE__*/createPortal(this.props.children, container);
    }
  }], [{
    key: "getDerivedStateFromProps",
    value: function getDerivedStateFromProps(nextProps, nextState) {
      return {
        container: nextProps.container && isPromise(nextProps.container) ? nextState.container : nextProps.container
      };
    }
  }]);
  return Portal;
}(React.Component);
Portal.defaultProps = {
  container: typeof document !== 'undefined' ? document.body : null
};
export default Portal;